• A leader on Edinburgh's tram project, which starts on 31 May, was wrong to say that initially the trams would run only between York Place in the New Town and the Gyle Centre in the west of the city, rather than out to Edinburgh airport as planned. Although the inaugural tram on launch day will start from the Gyle Centre, trams will start running to and from the airport the same morning (Unthinkable? Trouble-free trams in Edinburgh, 3 May, page 36).

• An interview with the former BBC2 controller Janice Hadlow referred to her leaving her post around the time of the channel's 25th anniversary. It is 50 years since the channel first went on air in April 1964 ('Of all the channels, BBC2 is the most eclectic', 5 May, page 26).

• A panel accompanying an article about risk erred in saying that an estimated 1,600 people died on the roads in the US in the 12 months following the 9/11 attacks on the twin towers. As the article itself made clear, the number of deaths was estimated to have increased by that number because many Americans chose to drive instead of fly (Take a risk, 5 May, page 4, G2).